Quiz about Magnetic and Electric Field Review

Question 1

What are the invisible lines called around this model?

Accepted Answer

Magnetic Field Lines

Answer

Electric Field Lines

Answer

Lettuce Seeds

Question 2

Which statement is true about both magnetic and electric fields?

Accepted Answer

Like charges repel each other

Answer

Like charges attract each other

Answer

Like poles attract each other

Question 3

These magnets would....

Accepted Answer

Attract

Answer

Repel

Question 4

As the magnets get farther apart, the strength of the fields get.....

Accepted Answer

Weaker

Answer

Stronger

Answer

Stay the same

Question 5

The electric field surrounding a positively charged object is

Accepted Answer

Away from the charge

Answer

Toward the charge

Question 6

If two charges attract to each other, then which of the following is true?

Accepted Answer

Both charges must be different.

Answer

Both charges must be positive.

Answer

Both charges must be negative

Answer

Both charges must be equal in value.

Question 7

An area surrounding an electron that exerts a force on nearby charges is a(n)

Accepted Answer

Electric Field

Answer

Magnetic Field

Answer

Gravitational Field

Answer

Baseball Field

Question 8

If you cut a bar magnet in half, each half would...

Accepted Answer

have it's own north and south poles

Answer

lose it's magnetic field

Answer

repel plastic objects

Question 9

The Affect of Electric fields surrounding particles become stronger the _______________ they are from each other.

Accepted Answer

Closer

Answer

Farther

Question 10

Why does the tinsel hover over the fun fly stick?

Accepted Answer

The tinsel is repelling the fun fly stick, they both have a build up of negative charges.

Answer

Magic

Answer

The tinsel is attracted to the negative charges build up in the fun fly stick.

Question 11

A student claims that Earth has a magnetic field. Which evidence would best support the student's claim?

Accepted Answer

The student turns in all directions with a compass and the needle always points north.

Answer

The student creates a working circuit that illuminates a bulb using wire and a battery.

Answer

The student receives a shock after walking across the carpet and touching a doorknob.

Answer

The student rolls a ball down a large hill and the ball comes to a complete stop at the bottom

Question 12

Cameron and Morgan are each holding a bar magnet with opposite poles facing each other. They walk in opposite directions until they stop feeling their magnet pull towards the other one. What can they conclude about the distance between them when they stop feeling their magnets pull?

Accepted Answer

They are outside the magnetic field of their magnets.

Answer

The distance made the magnets' force stronger.

Answer

The magnetic fields are far enough apart to change direction.

Answer

The magnetic field was weaker when they were close.

Question 13

A magnet can hold a piece of paper to the door of a refrigerator. How does the magnet stick without touching the door?

Accepted Answer

The magnetic force of the magnet can act at a distance.

Answer

Gravity attracts the magnet to the door.

Answer

The magnet induces a magnetic field in the paper.

Answer

Atoms from the magnet pass through the paper and touch the door.

Question 14

A student claims that the magnetic fields are not the same across the magnet. Using the picture, what evidence best supports the claim?

Accepted Answer

The magnetic fields of the magnet are strongest at both poles.

Answer

The magnetic fields of the magnet are strongest at the north pole.

Answer

The magnetic fields of the magnet are strongest at the south pole.

Answer

The magnetic fields of the magnet are strongest at the middle

Question 15

A student claims that the two magnets have a magnetic field that exists between them. What will occur that will support the student's claim?

Accepted Answer

The magnets will repel each other as the closest poles have like charges.

Answer

The magnets will repel each other as the closest poles have opposite charges.

Answer

The magnets will be attracted to each other as the closest poles have like charges

Answer

The magnets will be attracted to each other as the closest poles have opposite charges

Question 16

Which of the following might make the spoons repel each other?

Accepted Answer

Both A and B are negatively charged.

Answer

Neither A nor B is electrically charged.

Answer

A is positively charged, and B is negatively charged

Answer

A is negatively charged, and B is not electrically charged.

Question 17

Electrical current can produce which type of force?

Accepted Answer

Magnetic

Answer

Chemical

Answer

Gravitational

Answer

Nuclear

Question 18

Ivan has a magnet and four different objects. He places the magnet near each of the objects and records whether each object attracts, repels, or has no reaction. Which question is Ivan's experiment designed to answer?

Accepted Answer

Which objects will respond to a magnetic force?

Answer

Which type of magnet will apply force on an object?

Answer

How can magnetic force affect an object's shape?

Answer

How does an object's gravity affect a magnet?

Question 19

Using the 2 magnets in the image below, the student wanted to further explore and explain the phenomenon shown with the bar magnets. What would be an additional question the student should investigate?

Accepted Answer

How do fields interact when opposite

poles of a magnet face each other?

Answer

What does the magnetic field look like

that surrounds a single bar magnet?

Answer

What does the magnetic field look like

that surrounds a horseshoe magnet?

Answer

How do fields interact when like poles

of a magnet face each other?

Question 20

A student created a diagram to help to explain why the value on the balance changed as MAGNET 2 was lowered

towards MAGNET 1. Magnet 1 was placed on the balance with the NORTH pole facing upwards. Which diagram

accurately shows the orientation of magnet 2 as it was lowered?

Accepted Answer

Diagram A

Answer

Diagram B

Answer

Neither diagram A nor diagram B

Question 21

The magnetic domains in an iron nail are randomized unless it is placed in magnetic field.

Accepted Answer

True

Answer

False

Question 22

Describe the relationship between the amount of electric current and the strength of an electromagnet.

Accepted Answer

The stronger the electric current, the stronger the electromagnet.

Answer

There is no direct relationship between current and electromagnetic strength.

Answer

The stronger the electric current is the weaker the electromagnet will be.

Answer

A stronger current will reverse the polarity of any electromagnet.

Question 23

The table provided shows data collected by students during an investigation of two electromagnets.
(See Attached Diagram)
Which of the following conclusions is supported by data on the table?

Accepted Answer

The greater the charges of two electromagnets, the greater the size of the force.

Answer

When two electromagnets are of like charges, they attract each other.

Answer

Electromagnets that repel each other have more force than those that attract each other.

Answer

If the charge on one magnet is positive, the charge on the other must be negative.

Question 24

Magnetic and Electric Field Review

Accepted Answer

A) Magnetic fields can exert forces on moving charges.

Answer

B) Electric fields can only exert forces on stationary charges.

Answer

C) Magnetic fields can only exert forces on stationary charges.

Answer

D) Electric fields can exert forces on moving charges.

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